Delete unneeded files

.gitignore

@@ -22,9 +22,8 @@ out/
 /app/release
 
 # Gradle files
-.gradle
 .gradle/
-/build
+build/
 
 # Signing files
 .signing/
@@ -39,10 +38,8 @@ proguard/
 *.log
 
 # Android Studio
-/*/build/
-/*/local.properties
+local.properties
 /*/out
-/*/*/build
 /*/*/production
 captures/
 .navigation/
@@ -65,27 +62,7 @@ obj/
 /out/
 
 # User-specific configurations
-.idea/caches/
-.idea/libraries/
-.idea/shelf/
-.idea/workspace.xml
-.idea/tasks.xml
-.idea/.name
-.idea/compiler.xml
-.idea/copyright/profiles_settings.xml
-.idea/encodings.xml
-.idea/misc.xml
-.idea/modules.xml
-.idea/scopes/scope_settings.xml
-.idea/dictionaries
-.idea/vcs.xml
-.idea/jsLibraryMappings.xml
-.idea/datasources.xml
-.idea/dataSources.ids
-.idea/sqlDataSources.xml
-.idea/dynamic.xml
-.idea/uiDesigner.xml
-.idea/assetWizardSettings.xml
+.idea/
 
 # OS-specific files
 .DS_Store
@@ -120,9 +97,6 @@ hs_err_pid*
 # JIRA plugin
 atlassian-ide-plugin.xml
 
-# Mongo Explorer plugin
-.idea/mongoSettings.xml
-
 # Crashlytics plugin (for Android Studio and IntelliJ)
 com_crashlytics_export_strings.xml
 crashlytics.properties